Yes you can indeed keep it up and for many, many trips to come!
I will say if you this addicted now just wait!
The second you step on to Main Street, hear the sounds, smell the smells, and best of all see Cinderella's Castle for the first time WOW! No matter if it's your 1st trip or 101st if your a true disney-aholic, disney addict or disney freak (DH's term) you'll get goose bumps every single time!
I'll never forget the first time my DD, who was 4 at the time and is now 8, met Cinderella! I will never forget that DS, who was 2 at the time and is now 6, wouldn't even aknowledge the princesses until Snow White came over and he want to plant an big wet one right on her lips! I'll never forget my youngest meeting mickey for the very first time! There are soooo many more memories I could go on forever! Those are the things that make Disney so special!
Family time now a days is limited by too much work and too many other things. Childhood is fleeting. DH and I are firm believers in enjoying it while it lasts! Our time at WDW is sooooo important and special to us! Seeing the magic through the kiddos eyes is the most unbelieveable experience. That's why, even after 5 trips since 05 I still get goosebumps and choked up numerous time during our trips. It's also why we just purchased Disney Vacation Club! It's a wonderful feeling to know that there are years and years of
Disney vacations to come!!!
Good luck and happy planning!!!